71493299 has 4 divisors (see below), whose sum is σ = 73237080. Its totient is φ = 69749520.

The previous prime is 71493277. The next prime is 71493307. The reversal of 71493299 is 99239417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99239417 = 541 ⋅183437.

It is a cyclic number.

It is not a de Polignac number, because 71493299 - 2⁸ = 71493043 is a prime.

It is a super-2 number, since 2×71493299² = 10222583603806802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71493229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871829 + ... + 871910.

It is an arithmetic number, because the mean of its divisors is an integer number (18309270).

Almost surely, 2^71493299 is an apocalyptic number.

71493299 is a deficient number, since it is larger than the sum of its proper divisors (1743781).

71493299 is a wasteful number, since it uses less digits than its factorization.

71493299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743780.

The product of its digits is 122472, while the sum is 44.

The square root of 71493299 is about 8455.3710149230. The cubic root of 71493299 is about 415.0385583760.

The spelling of 71493299 in words is "seventy-one million, four hundred ninety-three thousand, two hundred ninety-nine".